Macklemore

Macklemore

Eugene Gologursky / Getty Images for Toshiba

Hip-hop duo Macklemore & Ryan Lewis will perform Jan. 23 in Los Angeles in a concert sponsored by T-Mobile, as the wireless carrier heats up its fight with rival Sprint. Above, Macklemore onstage on New Year's Eve in New York.

Hip-hop duo Macklemore & Ryan Lewis will perform Jan. 23 in Los Angeles in a concert sponsored by T-Mobile, as the wireless carrier heats up its fight with rival Sprint. Above, Macklemore onstage on New Year's Eve in New York. (Eugene Gologursky / Getty Images for Toshiba)

Hip-hop duo Macklemore & Ryan Lewis will perform Jan. 23 in Los Angeles in a concert sponsored by T-Mobile, as the wireless carrier heats up its fight with rival Sprint. Above, Macklemore onstage on New Year's Eve in New York.